| Election Name: | 1886 Wellington City mayoral election |
| Country: | New Zealand |
| Flag Image: | Wellington Coat Of Arms.svg |
| Type: | Presidential |
| Previous Election: | 1885 Wellington City mayoral election |
| Previous Year: | 1885 |
| Next Election: | 1887 Wellington City mayoral election |
| Next Year: | 1887 |
| Election Date: | 24 November 1886 |
| Turnout: | 1,509 |
| Candidate1: | Sam Brown |
| Party1: | Independent politician |
| Popular Vote1: | 864 |
| Percentage1: | 57.25 |
| Candidate2: | George Fisher |
| Party2: | Independent politician |
| Popular Vote2: | 645 |
| Percentage2: | 42.74 |
| Mayor | |
| Before Election: | Arthur Winton Brown |
| After Election: | Sam Brown |
The 1886 Wellington City mayoral election was part of the New Zealand local elections held that same year to decide who would take the office of Mayor of Wellington.
Incumbent mayor Arthur Winton Brown retired after one term. In an open race, former mayor Sam Brown defeated former mayor George Fisher.
The following table gives the election results: